Locking device for casement-stays.



5. iiiiii.

D. WALTER.

LOCKING DEVICE FOR CASEMENT STAYS.

APPLICATION HLED NOV. 30,1914.

Patented Aug 3, 1915 Church Road, Hove,

' for Casement-Stays;

as locking device which section of a modification.

ed-manner to the frame 2 DANIEL WALTER, Oli HOVE, ENGLAND.

LOCKING DEVICE FOR. CASEMENT-STAYS.

masher.

Specification of Letters Patent.

Patented Aug. 3, 1915.

Application filed November 30, 1914. Serial No. 874,858.

To all whom it may concern:

.Be it known that I, DANIEL WALTER, consulting engineer, a subject oftheKing of Great Britain, of

Sussex, England, have useful Locking Device and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as invented a new and.

my will enable others skilled in, the art to which it appertains to.make-and use the same. This invention relates to locking devices forcasement stays'and has'for its object the provision of a device whichshall eliminate the use of a key for releasing purposes as has hithertobeen usual with devices of this character.

A further object is the provision of a for casement stays which, will besimple, comparatively inexpensive in manufacture, efficient and durablein use and a general improvement of the art.

With these and other objects and advan- 2.5 tages in view, my inventionconsists in the novel construction, formation,

arrangement parts to be hereinafter and claimed and illustheaccompanying drawings, in

- and combination. of

more fully described I trated in Figure 1 is a fragmentary view of acasement and frame with the locking-device in position. Fig.2 is avertical section taken on line A A of Fig. 1. Fig. 3 is a vertical Fig.4 is a detail of a further modification; Fig. 5- is a vertical sectionof a further modification.

1 Referring to Figs. 1 and 2 of the draw' ings the casement l is hingedin the usual and is provided with an arm 3 pivoted at 4- to a bracket 5so as to be capable of movement in one plane irrespective of thecasement.

To retain the easement inthe desired po- 45, sition means have to beprovided for instan- A taneously locking the same and which means havealso to be so devised thatdthe release from a locked position isattained with equal facility. One form of such a means made inaccordance with this invention is shown in Fig. 2 and consists oftwoconcentrically arranged telescopically collapsiblc tubes or cylinders 8and 11 both of which are closed at their inner ends. The

5 outer tube 8 is supported by shoulders 9 on and within a base member 6which is Grosvenor House, New

'ing the outer tube 8.

tu e

recessed to receive it and which is firmly secured to the casement frameby screws 10 or other means.

A central screw 11 is provided, passing through the inner closed end ofthe tube 8 into the casement, to retain the device in position with anallowance at the same time for rotation.

completely through the two concentric tubes and directly over the pin 12by reason of the corresponding recesses 13 provided.

The inner tube or cylinder 11 with' its pin 12 is held in a normallyraised position by means of a suitable spring 15 the lower part of whichrests upon the closed end of the outer tube 8. When in this raisedposition the locking pin 12 is forced into engagement with the recessesin the casement arm aforesaid and to release the same therefrom 1the-inner tube 11 is depressed, means, such as a cap 21 being providedto facilitate the operation.

The device represented in Fig. 2 isintended for use with triangularcross section casement arms.

The modified form according to Fig. 3 is precisely similar in operationto the one just described in connection with the'pr'evious figure withthis difference that, the base member 6 is of a box like constructionwith the object of providing a deeper bearing for the inner end of theouter tube 8. A further difference is in the shape of the correspondingrecesses 13 which in this instance are semi-circular toaccommodate'casement arms of circular section.

The modified form according to'Fig. 4 relates to the means forrotatively support- In this instance the 8 is formed with a downwardlyprojectin annular flange 18 by which it is supporte' upon an annular ustanding flange 19 formed on the base member 6.

In Fig. 6 is shown a further modified form intended primz rily for usewith fixed casement arms. According to this form the locking device issecured by means of the outer tube 8 to the easement 1 while the 'in-.her tube 11 carrying the locking pin 12 is are suitably slotted to allowfor clearing the arm 3 during depression. 7

It will be seen that the device is applicable equally for curved as forstraight casement arms.

What I do claim as my invention and desire to secure by Letters Patentis 1. A locking device for casement stays comprising a hollow member, asecond member slidable in the first member and directly engageable toactuate same to release position, said members being providedrespectively with opposite openings through which a casement stay isadapted to slide, a locking stud carried by the second member, and

vmeans for yieldingly holding the second member in position to disposethe locking stud in engaging position with respect to a casement stay.

2. A locking device for casement stays comprising a hollow member, asecond member slidable in the first member and directly DANIEL lVALTER.

Witnesses GEORGE HUGHES, HERBERT HoDnER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

